Other Fitness Exercises - Whistler is one of the most significant signals during basketball competition. It is also a powerful weapon as to referees. In order to adapt to fierce competition, youâ€TMd better select a high-frequency whistle with loud sound and high pitch. Our Specialized Plastic Basketball Referee Whistle Color Random is just the one you are seeking for. Made of high-class plastic material, it is so environmentally friendly that you can trustingly use it with your lips. Thanks to its exquisite craftsmanship, this whistle sends out loud sound with high pitch but not strident at all. With this small whistle, you will be confident enough during your judgment!Features A professional labor-saving whistle for refereesIt could emit high-pitched loud sound, but not stridentFlat mouth design, easy to useFine workmanship with top-quality plastic materialA powerful and crucial weapon for basketball competitionHelp to timely send out important signal during basketball competitionSpecifications ColorRandomQuantity1pcsDimensions(1.65 x 0.79 x 0.79)" / (4.2 x 2 x 2)cm (L x W x H)Weight0.98oz / 28gMetarialPlasticPackage Includes 1 x Whistle